[PATCH 0/4] drm/mgag200: Workaround HW bug with non-0 offset

[Thomas Zimmermann]

We found an MGA chip that does not interpret the scanout offset
correctly. This patch works around the problem by placing all buffer
objects at offset 0 on this system.

There's a new module parameter 'hw_bug_no_startadd' that enables and
disables the offset-0 placement. Default is auto-detection.

Thomas Zimmermann (4):
  drm/mgag200: Extract device type from flags
  drm/mgag200: Store flags from PCI driver data in device structure
  drm/mgag200: Add workaround for HW that does not support 'startadd'
  drm/mgag200: Add module parameter to pin all buffers at offset 0

 drivers/gpu/drm/mgag200/mgag200_drv.c  | 44 +++++++++++++++++++++++++-
 drivers/gpu/drm/mgag200/mgag200_drv.h  | 18 +++++++++++
 drivers/gpu/drm/mgag200/mgag200_main.c |  3 +-
 3 files changed, 63 insertions(+), 2 deletions(-)

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2.23.0